diff --git a/DynamicIsland.xcodeproj/project.pbxproj b/DynamicIsland.xcodeproj/project.pbxproj
index e778528..6e847c1 100644
--- a/DynamicIsland.xcodeproj/project.pbxproj
+++ b/DynamicIsland.xcodeproj/project.pbxproj
@@ -428,7 +428,7 @@
 					"$(inherited)",
 					"@executable_path/../Frameworks",
 				);
-				MARKETING_VERSION = "1.2-beta";
+				MARKETING_VERSION = "1.2.1-beta";
 				PRODUCT_BUNDLE_IDENTIFIER = com.Ebullioscopic.Atoll;
 				PRODUCT_NAME = Atoll;
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -498,7 +498,7 @@
 					"$(inherited)",
 					"@executable_path/../Frameworks",
 				);
-				MARKETING_VERSION = "1.2-beta";
+				MARKETING_VERSION = "1.2.1-beta";
 				PRODUCT_BUNDLE_IDENTIFIER = com.Ebullioscopic.Atoll;
 				PRODUCT_NAME = Atoll;
 				PROVISIONING_PROFILE_SPECIFIER = "";
diff --git a/Updates/appcast.xml b/Updates/appcast.xml
index 3e52627..a727780 100644
--- a/Updates/appcast.xml
+++ b/Updates/appcast.xml
@@ -2,6 +2,14 @@
 <rss xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle" version="2.0">
     <channel>
         <title>Atoll</title>
+        <item>
+            <title>1.2.1-beta</title>
+            <pubDate>Sat, 14 Dec 2025 07:13:00 +0530</pubDate>
+            <sparkle:version>2</sparkle:version>
+            <sparkle:shortVersionString>1.2.1-beta</sparkle:shortVersionString>
+            <sparkle:minimumSystemVersion>15.0</sparkle:minimumSystemVersion>
+            <enclosure url="https://raw.githubusercontent.com/Ebullioscopic/Atoll/main/Updates/Atoll%201.2.1-beta.dmg" length="19794214" type="application/octet-stream" sparkle:edSignature="Vt0NevXKUExR57f83sVIVgSXyUdq3kGXHDKRyhMxQhdPggYk5Rr7yexHMX8kecVx+sw4ZNoQVef8E/egV0IoAQ=="/>
+        </item>
         <item>
             <title>1.2-beta</title>
             <pubDate>Fri, 05 Dec 2025 13:17:08 +0530</pubDate>